16065332478 has 80 divisors (see below), whose sum is σ = 40104298080. Its totient is φ = 4772706624.

The previous prime is 16065332477. The next prime is 16065332531. The reversal of 16065332478 is 87423356061.

16065332478 is a `hidden beast` number, since 1 + 606 + 5 + 3 + 32 + 4 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16065332471) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70450 + ... + 192597.

It is an arithmetic number, because the mean of its divisors is an integer number (501303726).

Almost surely, 2^16065332478 is an apocalyptic number.

16065332478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16065332478 is an abundant number, since it is smaller than the sum of its proper divisors (24038965602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16065332478 is a wasteful number, since it uses less digits than its factorization.

16065332478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263103 (or 263094 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

It can be divided in two parts, 160653 and 32478, that added together give a triangular number (193131 = T₆₂₁).

The spelling of 16065332478 in words is "sixteen billion, sixty-five million, three hundred thirty-two thousand, four hundred seventy-eight".